<!doctype html>
<html lang="cn">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Bootstrap demo</title>
    <link href="./bootstrap-5.3.2-dist/css/bootstrap.min.css" rel="stylesheet" >
    <link href="./my.css" rel="stylesheet">
  </head>
  <body>
    <script src="./bootstrap-5.3.2-dist/js/bootstrap.min.js" ></script>

    <nav class="navbar navbar-expand-lg bg-body-tertiary">
        <div class="container-fluid">
          <div class="nav-bord"></div>

          <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>
          <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
              <li class="nav-item">
                <a class="nav-link active" aria-current="page" href="now.html">首页</a>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="./second.html">项目经历</a>
              </li>
              <li class="nav-item dropdown">
                <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
                  竞赛经历
                </a>
                <ul class="dropdown-menu">
                  <li><a class="dropdown-item" href="#">Action</a></li>
                  <li><a class="dropdown-item" href="#">Another action</a></li>
                  <li><hr class="dropdown-divider"></li>
                  <li><a class="dropdown-item" href="#">Something else here</a></li>
                </ul>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">个人总结</a>
              </li>
            </ul>
            <form class="d-flex" role="search">
              <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
              <button class="btn btn-outline-success" type="submit">Search</button>
            </form>
          </div>
        </div>
    </nav>
    
    <div class="myintro">
        <div class="container text-center">
            <div class="row">
                 <div class="col">
                     第一个项目
                </div>
                <div class="col">
                    <p>diergexiangmu</p>
                </div>
                <div class="col">
                    第三个项目
                </div>
             </div>
        </div>
    </div>

    
  </body>
</html>